编辑代码

class Main {
	public static void main(String[] args) {
        Student p1=new Student();
        p1.setName("ww");
        p1.setNum(12);
        p1.speak();
        Student p2=new Student("jj",12);
	}

}
class Student{
    private String name;
    private double num;
    public String getName(){
        return name;
    }
    public void setName(String name){
        this.name=name;
    }
    public double getNum(){
        return num;
    }
    public void setNum(double num){
        this.num=num;
    }
    public Student(){}
    public Student(String name,double num){
        this.name=name;
        this.num=num;
        System.out.println(name+" "+num);
    }
    public void speak(){
        System.out.println(name+" "+num);
    }
}